Valve fob coal-washing jigs



C. A. WENDELL.

VALVE FOR COAL WASHING JIGS'.

APPLICATION FILED MAR; 8. I915- Patented Au 15, 1916.

2 SHEETS-SHEET I n I I571 C. A. WENDELL.

VALVE FOR COAL WASHING JIGS.

APPLICATION FILED MAR. 8. i915.

1,19%;583. v Patented-laugh 1916.

2 SHEETS-SHEET 2:

cam. A. WENDELL, on. mm, rnnmors.

VALVE FOR GOAL-WASHING :IIGS.

I m 1,194,5fi3. Specification of Letters Patent. Patented Aug, 15,19145,

Applicationfiled March 8, 1915. Serial No. 12,920.

To all whom it may concern: a three part piston 16 17 18 all actuated bV Ide'it known that I, CARL A. IVEnnnLL, a a single stem 19, the sa1 nebeing caused ti; cltrzen of the United States, and resident ofreciprocate by a cam 20, best shown in Fig. Jollet, 1n the county ofWlll and State of 2, Which cam is connected to a suitable Illinois, haveinvented certain new and usesource of power. The casing is provided fulImprovements in Valves for Coal-'VVashwith a port 21 communicating withthe exing Jigs, of which the following is a specifihaustconduit 12,ports 22, 23 communicatcat1on. ing with the main, ports 24, 25communicat- My lnventlon relates to apparatus for use ing with thesupply conduit, and port 26 10 in connection with coal washing and hascommunicating .with the atmosphere. In

particular reference to a novel valve and asthe position shown in Fig.1, air is being sociated apparatus for producing a rapid aldrawn out 'ofthe main 14 into the exhaust tel-nation 1n the air pressure acting upona fan 10, for the reason that the ports 23, 25

]1g such as disclosed in my Patent No. are in communication. Thepressure de- 15 1,165,734 of December 28, 1915 and Reissue veloped atthis stage by the fan is accommo- No. 14,121 of April 25,1916. dated bythe e ualizing tank 13, the outlet In the operation of a jig such .;asdisfrom thetank %eing closed by the position closed in my copendingapplications, it is of the piston 17. In the position of Fig. 1essential that mechanism should be prothe port 23 is closed and theports 21, 22

2o vided for producing the required rapid alare in communication,whereby the pressure ternation in the direction of flow or pressureaccumulated in the equalizer tank is directed of the air acting uponsuch apparatus. into the main and not only restores the pres- Mechanismfor securing this result should, of sure in the main to atmospheric,'but'prefercourse, be relatively simple and inexpenably raises thepressure slightly thereabove.

25 sively operated. This assumes a minimum In this position of the partsthe supply connumber of parts and therefore relative abduit is open tothe atmosphere, because the sence of complexity. Y ports 25, 26 are incommunicatiomthus fur- The mechanism which I have devised and nishing asupply of air at atmospheric preswhich is shown herein is very simple,the sure to the blower which is forced into the 1 so alternation in theflow of air being secured equalizing tank in readiness for further use.

' by the use of a single movable part, the dif-- If desired, in order tomaintain a constant ferent ports being covered and uncovered in pressurein the tank, I may locate on to proper sequence by this singlemechanism. of the tank a water seal consisting in a goose The inventionwill be more readily underneck 27 which terminates within a water 85stood by reference to the accompanying container 28.

drawings wherein: Inasmuch as the reciprocations of the Figure 1 is aplan view partly in section valvemember are intended to becomparashowing an apparatus constructed in ac trvely rapid, the changesin pressure concordance with my invention, Fig. 2 is a side ditlons 1nthe main Wlll vary correspond- 40 elevation of the same, Fig. 3 is anend elevaingly and the necessary pulsating action setion thereof,.andFig. 1 is a fragmentary decured. (tail showing the valve in a differentposi- It Wlll be noted that the plston 1s pos1- tion to that shown inFig. 1. tlvely moved 111 one directlon and returned Referring moreparticularly to the drawto its original positlon by spring means such 46ings, it will be seen that I provide an exas shown-at 29; Th1s andotherelements haust fan 10, or other suitable blast producmay be changedwithout departure from the ing means, this fan having a supply conduitsplrltof my invention. 11 and an exhaust "conduit 12. In the eX- Iclaim: haust conduit I locate. an equalizing tank 13. 1. In a device ofthe class described, the 50 A main 14: communicates with the coalcombination of means for producing a con-v washing jig, such as shown inmy copending tinuous blastof a r, a pressure equallz'er, applicationsreferred to. Interposed at the and a valve 1n the pressurelmaisa d valvejunction of the main and the supply and being provlded wlth means forperiodically exhaust conduits is a valve which may con: interrupting thepassage of air through one i I 55 sist in a casing 15 within which ismounted, condu t and substa'ntlallyf simultaneously placing the pressureline in communication with a second air space, substantially asdescribed.

2. In a device of the class described, the

combination of blast producing apparatus,

conduits for supplying air to and discharg ing the same from saidapparatus, a leading conduit, a valve at the junction of said threeconduits, and means periodically and alternately actuating said valve toplace said leading conduit in communication With said supply anddischarge COIlClUltS, substantially nately actuating said valve to placesaid. leadlng conduit 1n communication wlth said supply and dischargeconduits, substantially as described. 1 p

4:. In a'device of the class described, the COIllblIlfltlOItOf blastproducing apparatus, conduits for supplying air to and discharging thesame from said apparatus, a leading conduit, a valve at the junction ofsaid three conduits, and means periodically and alternatelyactuatingsald valve to place said leading conduit in communication ,Withsaid supply and discharge conduits and for placing one of said conduitsin connminicatien with the atmosphere when the other conduit isconnected to said leading conduit, substantially as described.

5. In a device of the class described, the

combination of an exhaust fan, supply and discharge conduits. therefor,an equalizing tank 111 one of said conduit-s, a main, a valve at thejunction of said conduits and main,-

and means for rapidly and alternately connecting said main to saidsupply and exhaust conduits, substantially as described.

- 6. In a device of the class described, the combination of a blowerhaving supply and exhaust conduits, a main, and means for alternatelyconnecting said main to said exhaust and supply conduits, saidalternations occurrin 'with relative rapidity, substan-- tially asdescribed. Signed at J oliet, Illinois, this third day of March, 1915.

' CARL A. WENDELL. Witnesses; Tr 'omas 'J. SAMPSON, WILBUR C. FRY, Jr.

